Demountable rim.



E. P. CALVIN.

DEMouNABLE mm.

APPLICATIN HLED JULY-25,1916. 1 ,272,21 3., Patented hay 9, 1918. f u 2 SHEETS-SMU 1.

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@www E. P. CALVIN.

DEMOUNTAELE RIM.

APPLICATION FILED JULYZ, i916.

Pfiented July 9, 1918.

2 SHEETS-SHEET 2.

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application :filed y To aZZ whom t may concern: A

Be it known that l, Emma P. Gamin, a citizen of the United States, residing at Sardinia, in the county of Brown and State of Ohio, have invented new and useful. lin-k provements in Delnountable Rims, ot' which the following is a specification.

This invention relates to a den'iountable rim for vehicle wheels, and is particularly adaptable for engagement with the pneu matic tires of automobiles and such li i vehicles, as the saine is so constructed and connected with the elly oit tli wheel to and quickly released from its engagement with the felly, to permit et the rim and the tire being moved .laterally oli' of the said tire.

In carrying out my invention it is my primary object to provide a demountable' rino for wheels whereby the t be easily and quickly secured thereon before the rim applied to the telly of the wheel and whereby the said rim and tire may be easily removed from the wheel to ,rmit of the removal of the tire from the rim, simple but novel means being employed i'or lecleing the rim upon the wheel and securing the tire to the rim.

lt is also my purpose to produce a demountable rim which shall include a ineinber that is lined upon the elly oi' a wheel and a tire-carrying member or rim arranged over the fixed rim and provided with means whereby the same may be locked upon the said fixed rim and the felly of the wheel, the tire-carrying rim including two separable members having interlocking enga ge ment with each other and one of the said members being in the nature of side or flange for the trecarrying rim proper and being' slit and of a resilient nature whpreby the ends of the same may be readily sprung into alinernent to grip the tire when the said side is arranged upon the tire-carrying rim proper, and also whereby the ends of the said side may be moved one away from the v matter of United States Patent Application No. 24,303, said application having been allovved on leeember 3i, 1913.

' With the above and other objects in View entre.,

ennemie, onto.

the improvement resides in the construction', combination and arrangement of parts Set forth in the following specification and falling within the'scope of the appended claim.

In the drawings: Figure' 1 is a side elevation, partly in section, showing a wheel telly, the relation of the fixed and detachable rims thereto, the locking rino' and the operating means for the latter,

Q is an enlarged cross sectional View approximately on the line 2-2 of Fig. 1,'

3 is a similar sectional View approximately on the line 3 3 of Fig. 1,

Fig. 4 is a longitudinal or circumferential section approximately' on the line 4-4 of 1, looking from the Wheel hub out- 5 is a fragmentary perspective viewlocking ring, 5 is a plan view of the same, 'i is a fragmentary perspective view rim, Fig. i is a similar view of the main member ot the dernountable rim, and

Fig. 9 is a similar view of the detachable or side member of the demountable rim.

Fig. 10 a detail side elevation of the lside section showing the ends thereof sprung apart.

ln the drawings like reference characters designate corresponding parts throughout the several views.

Referring now to the drawings in detail, 10 designates a wheel telly, and 11 a Xed rinn composed oit' metal, surrounding the telly 1() and fixed thereto as well aspro# Fatented July 9, 1918.'

j ecting beyond both of the sides of the telly.

The tixerl rim 11 is extended beyond one of Jthe sidesy of the telly agreater distance than the same is extended beyond the opposite side of the said felly, and the said rim, at its edge projected over the first mentioned side of the telly, is provided with inwardly extending flange 12 and the said rim from the said edge at intervals is formedwith notches 13, the telly being provided with inwardly extending plates or ears 14 arranged in a line with the inner Valls of the notches 13 and these ears contact-with one of the sides of the wheel folly 10 and may,

it desired, be seeui'ed tothe said fellyyi Aand this portion of ing the outer face of the said rim with a beveled-or wedge-shaped surface 16 for a suitable distance from the said flange 15.

The tire-carrying rim includes two sections, a main section 17 and an auxiliary' or side section 18. Both of these sections are provided at one .of their sides with the usual flanges 19'. HThe main section 17 includes a flat annular base 20 having its inner edge, or its edge opposite to that provided with the flange 19, formed with an inwardly extending annular' tongue 2l, while the auxiliary or side section has its base in the nature of a lchannel member, as indicatedV ed to be contacted by the annular flange 15 12 andthe ears 14 of to loe-positioned of the said fixed rim. The rim section 18 comprises' an annular element which is slitted angularly and which is constructed of some suitable spring material whereby, when the ends of the `same are brought into va-linement, and the channeled portiorr thereof engages with the tongue of the main tion 17 he section 18 will grip the section 17 and normally sustain itself in proper positionthereon with its meeting edges alining. It will be apparent that the section 18,

may b e readily removed from the section 17 when the tire-carrying rim is moved laterally 0E lfrom the fixed rim (in a manner which will presently be described), by

bringing one of the split ends out of register-'with t-he other end of the said section 18 and by then moving the ends of the section one over the other, so that one of the ends will lap the other end of the said scction 18.

The main section 17 of the tire-carrying rim has its inner face provided with inwardly extending lugs 24, the said lugs having oppositely yinclined wedging faces 25 and 26 and the number of these lugs correspond with the number of notches lin the fixed rim 11, one of the said lugs being adapted to be received each in one of the said notches so that the inclined or wed'ging faces of, said lugs are disposed approximately centrally of the passage provided between the flange 12 and the ears'l: of the said fixed rim 11.

n The locking ring is indicated by the numeral27 and is adapted t'o be received within the referred to passage between the flange the fixed rim and so adjacent to'one of the sides of the felly 10. The locking ring 27 has its outer periphery or face notched at spaced intervals, the number of notches corresponding with the number of lugs 24 and thesaid notchesy are cut at anangle providing .the locking ring with oppositely disposed pairs of wedging faces 28 and 29. The wedging faces of the'locking ring are adapted to coact with the inclined or wedging faces of thc lugs Q-L so that when 'the ring is partly revolved in one direction, around the wheel fclly, the wedging ring will engage .with the wedging faces 25 of the lugs to move the tire-carrying rim laterally of the felly in an outward direction, and when the ring 27 is moved in an opposite direction, the the said locking ring will contact with the wedging faces 20 of the lugs moving the tire-carrying rini over the wheel felly and the beveled surfaces of the, base of the tirecarrying rim section-over the beveled surface 1G of the fixed vrim andv forcingl the said section 18 into contact with the annular flange 15 of the said fixed rim and soproperly rel ain the tire-carrying rim upon the.

wheel felly.

The locking ring is inclosed in an angular channeled member 3() having its base p01"- tion provided with an inturncd annular flangel which is provided with suitable openings through which pass securing elements whereby the channeled housing member 3() is secured to one of the sides of the wheel fell y 10. The outer edge of the channeled housing member 30 may contact with the inner edge of the flange 12 of the fixed rim ll, and the member lT of the tire-carrying rim may have an inwardly extending flange 31 which is in the nature of a flat disk or ring or the said ring member 31 may bev secured to the flange 15) of the said member 17, the member il bridging the joint between the channeled housing 30 and the flange 15 tecting the structure from dirt or other foreign matter, and furthermore, if desired, thev ring member 51 upon its inner face may bc provided with an annular'depression to receive a-packing ring 32 which will more effectively insure a tight joint between the said ring31 and the housing 30.

rlhe means for partially turning the lockl.

ing ring 27 embodies` a rack face 33 on the said, ring and in conjunction therewith a pinion 34 fastened on a pinion shaft 35, said shaft having its inner end journaled in a suitable bearing plate 36 which may be provided by the inner wall ofthe housing 30 and which if desired may be a member separable from the housing, while the'onter end of the sha-.ft projects through an openlast mentioned end of the shaft being square faces of the locking of the fixed rim ll, thus promg in the outer face of the housing 30, the

wedging facesl 29 of so in cross section to receive a suitable key by "means of which the shaft and pinion n'iay be turned in order to impart a corresponding movement to the locking or wedging intente ring. n order to prevent any possibility of the detachable rim and locking ring Working loose, the ring 27 is provided with ratchet teeth 37 which are engaged by a spring detent 38 that has attached thereto e stem 39 that projects through an opening in the housing 30, sind the end of the said stem is provided with an operating heed 40. The spring detent is, o1c course, brought out of engagement with the ratchet teeth beore the pinion is operated to turn the locking ring, and from the foregoing description when taken in connection with the drawings the construction, operation and adventeges of the device will, it is thought, be apparent to those skilled in the nrt to which such invention npperteins without further detailed description.

Having thus described the invention, what cieim isz` The combination with the telly of e vehicie Wheel, of a. ixed rim fastened thereon and projecting over the'sides of the said eily, one or the edges of the said riin having en. intnrned annuler fiange, said edge 'being provided with spaced notches, ears upon the inner Wells ot' the notches contecting and secured to one of the sides of the telly, theopposite edge of the rim having an outtnrned nnge and having its outer face from the seid flange beveled, :i detachable tire-carrying rim surrounding the fixed rim, ings upon the nnderface of the said tire carrying rini having oppositely Wedge shaped faces which are arranged one Within. each of the notches of the fixed rim, a turnabieinember having spaced Wedgeshaped faces (3o-acting with the ings, e housing for the said turnable member secured to the side of the felly, means carried by seid housing and co-ecting with the turnabie member for moving the same, means carried by the said housing for locking the turnnble member, and an inturned innge upon the tire-carrying rim having its inner fece provided with a conipressibie element Which contacts with the outer face of the housing.

in testimoni)r whereof affix my signa.-

ture.

ELMER P. CALVN. 

